某企业只生产一种产品，该产品各项目占销售收入的百分比分别为：直接材料30%；直接人工

上海证券交易所竞价交易中，债券质押式回购交易的申报数量为（）。

A.1手或其整数倍

B.10张或其整数倍

C.100手或其整数倍

D.1000手或其整数倍

嵌入式系统中，由C 语言编写的中断处理程序，其最大特点是返回值和参数必须是（58） 类型。

A．int

B．void

C．Interrupter

D．reti

（B）

People have wondered for a long time how their personalities and behaviors are formed．It is not easy to explain why one person is intelligent and another is not, or why one is cooperative and another is competitive．

Social scientists are, of course, extremely interested in these types of questions．They want to explain why we possess certain characteristics and exhibit certain behaviors．There are no clear answers yet, but two distinct schools of thought on the matter have developed．As one might expect, the two approaches are very different from one another, and there is a great deal of debate between proponents of each theory．The controversy is often referred to as “nature/nurture”．

Those who support the “nature” side of the conflict believe that our personalities and behavior patterns are largely determined by biological and genetic factors．That our environment has little, if anything, to do with our abilities, characteristics, and behavior is central to this theory．Taken to an extreme, this theory maintains that our behavior is predetermined to such a degree that we are almost completely governed by our instincts．

Proponents of the “nurture” theory, or, as they are often called, behaviorists, claimed that our environment is more important than our biologically based instincts in determining how we will act．A behaviorist, B．F．Skinner, sees humans as beings whose behavior is almost completely shaped by their surroundings．The behaviorists’ view of the human being is quite mechanistic; they maintain that, like machines, humans’ respond to environmental stimuli as the basis of their behavior．

Either of these theories cannot yet fully explain human behavior．In fact, it is quite likely that the key to our behavior lies somewhere between these two extremes．That the controversy will continue for a long time is certain．

69．Which of the following statements would the supporters of the “nature” theory agree with?

A．A person’s instincts have little effect on his actions．

B．Environment is important in determining a person’s behavior and personality．

C．Biological reasons have a strong influence on how we act．

D．The behaviorists’ view correctly explains how we act．

70．Concerning the nature/nurture controversy, the writer of this article____________．

A．supports the nature theory

B．supports the nurture theory

C．believes both are completely wrong

D．thinks that the correct explanation of human behavior will take ideas from both theories．

71．In the United States, Black people often score below White people on intelligence tests．With this in mind, which of the following statements is NOT true?

A．Nature proponents would say that Whites are genetically superior to Blacks．

B．Supporters of the nature theory would say that Whites score well because they have a superior environment．

C．Behaviorists would say that Blacks often lack the educational and environmental advantages that Whites enjoy．

D．Nurture proponents would disagree that Blacks are biologically inferior to Whites．

1988年，李某与村民委员会签订承包合同，承包了村里的100亩山地，约定每年上缴承包款2000元，承包期20年。此后，李某在山地上种植了橘树，1995年后，李某每年从山地上获取的收益都．达5万元以上，这引起了村里一部分人的不满。1998年，在部分村民的要求下，村民委员会召开村民代表会议讨论后决定，以情事变更为由，将这100亩山地收回，并转由何某、石某承包，年承包款各1万元。李某向乡人民政府申请裁决，乡人民政府经审查后认定，村民委员会收回山地的行为经村民代表会议讨论通过，是有效的行为。并确定山地由石某、何某使用。李某向县人民法院提起行政诉讼。县人民法院裁定不予受理，并告知李某应先提起行政复议。李某随即向该乡所属的区公所申请行政复议，区公所未予受理，李某又向县人民政府申请复议。县人民政府审理过程中，乡人民政府辩称，其行为是对民事纠纷的调解，不在复议范围内。最后，县人民政府作出了李某与村民委员会签订的合同有效，撤销乡人民政府的裁决的复议决定。 问题：(1)乡政府的行为属于具体行政行为还是民事调解行为？ (2)县人民法院的做法是否合法？ (3)区公所是否有复议管辖权？

孕妇，30岁，妊娠38周，第一胎。规律性腹痛3h入院待产。胎方位为单臀位，估计胎儿重3000g，骨盆外测量正常。

护士对患者家属解释臀位最易发生的并发症是

A．新生儿窒息
B．胎膜早破、脐带脱垂
C．产后出血
D．胎盘植入
E．宫颈撕裂